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            <h2 class="title"><a id="db_map_iterators"></a>Chapter 14. 
 Iterator Classes for db_map and db_multimap  </h2>
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      <p><a class="link" href="db_map.html" title="Chapter 5.  Db_map">db_map</a>
 has two iterator class templates -- <a class="link" href="db_map_base_iterator.html" title="Chapter 15.  Db_map_base_iterator">db_map_base_iterator</a>
 and <a class="link" href="db_map_iterator.html" title="Chapter 16.  Db_map_iterator">db_map_iterator</a>
. </p>
      <p>They are the const iterator class and iterator class for <a class="link" href="db_map.html" title="Chapter 5.  Db_map">db_map</a>
 and <a class="link" href="db_multimap.html" title="Chapter 6.  Db_multimap">db_multimap</a>
. <a class="link" href="db_map_iterator.html" title="Chapter 16.  Db_map_iterator">db_map_iterator</a>
 inherits from <a class="link" href="db_map_base_iterator.html" title="Chapter 15.  Db_map_base_iterator">db_map_base_iterator</a>
.</p>
      <p>The two classes have identical behaviors to std::map::const_iterator and std::map::iterator respectively. Note that the common public member function behaviors are described in the <a class="link" href="db_base_iterator.html" title="Chapter 10.  Db_base_iterator">db_base_iterator</a>
 section.</p>
      <p>The differences between the two classes are that the <a class="link" href="db_map_base_iterator.html" title="Chapter 15.  Db_map_base_iterator">db_map_base_iterator</a>
 can only be used to read its referenced value, while <a class="link" href="db_map_iterator.html" title="Chapter 16.  Db_map_iterator">db_map_iterator</a>
 allows both read and write access. If your access pattern is readonly, it is strongly recommended that you use the const iterator because it is faster and more efficient. </p>
      <h4><a id="idp51088968"></a> Public Members </h4>
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<a class="link" href="db_map_base_iterator.html" title="Chapter 15.  Db_map_base_iterator">
db_map_base_iterator</a>
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db_map_base_iterator</td>
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db_map_iterator</a>
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db_map_iterator</td>
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